运用 yùnyòng to use
to use; to put to use
How to remember 运用: 运 transport + 用 to use (Kangxi radical 101) = to use.
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How it is used
- To apply knowledge/skill/method in practice - 运用所学 (yùnyòng suǒ xué) apply what you've learned; 灵活运用 (línghuó yùnyòng) apply flexibly.
- More abstract and skillful than plain 用 (yòng, to use a thing): you 用 a pen but 运用 a technique or theory. Common in writing and instruction.